Lock.



PATENTED AUG. 9, 1904.

E. L. KRAUS.

LOCK.

APPLIOATION mum D20. 7, 1903.

N0 MODEL.

[[VVEN R I Emdlfizzm WITNESS tion through the look.

Patented August 9, 1904.

PATENT @EETbE.

EDW ARD L. KRAUS, OF SLATINGTON, PENNSYLVANIA.

LOCK.

SPECIFICJATION forming part of Letters Patent No. 767,292, dated August 9, 1904.

Application filed December 7,1903. Serial No. 184,106. (No model.)

To all whmn it iii/my concern:

Be it known that I, EDWARD L. KRAUs, a citizen of the United States, residing at Slatington, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Locks, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a lock, and particularly to a simple construction adapted for application to boxes, such asscholars companions, cigar-boxes, and other similar receptacles.

The invention has for an object to produce a lock which is both simple in construction and efficient in operation, so as to permit the application thereof to boxes at a minimum of cost and without the necessity of auxiliary securing devices.

A further object of the invention is to provide an escutcheon or mask to protect the face of the lock and prevent the operation thereof by other devices than the key intended for that purpose, such escutcheon being substantially an eyelet construction to permit its application and securing in position in the simplest and most efficient manner.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings, Figure l is a perspective of the lock applied. Fig. 2 is a vertical see- Fig. 3 is-a plan showing the blank from which the lock-case is adapted to be formed. Fig. at is an elevation showing the lock-hook applied to the casing. Fig. 5 is a perspective of the parts of the escutcheon separated, and Fig. 6 is a plan of the key.

Like letters of reference refer to like parts in the several figures of the drawings.

As illustrating one application of the lock it is herein shown in Figs. 1 and 2 as applied to the front A of a box or similar object and adapted to cooperate with a pin A, carried by the cover A of the box, while the lockcasing B is adapted to be secured to this front A by means of prongs B at one end and to the bottom A of the box by means of prongs B at the opposite ends of the plate comprising the casing. The sides of this plate are provided with flanges B adapted to be bent at a right angle thereto to inclose the lock. This plate is adapted to be stamped or cut from a piece of material, the blanks therefor being shown in Fig. 3, each of which is provided adjacent to its upper portion with a slot B through which the locking-hook C is adapted to extend. The prongs B and the portion of the blank containing the slot B are bent at a right angle to the body of the plate, while said prongs are further bent at a right angle to the slotted portion and parallel to the main body, so as to enter the upper face of the front of the box, as shown by dotted lines in Fig. 2, while the prongs B at the bottom of the plate are driven into the bottom A of the box. The plate is further provided with a central hole B", adapted to receive an eyelet B which also passes through the slotted body G of the locking-hook centrally of the length of the slot therein, so as to leave portions C at the opposite sides of the eyelet, into which the prongs or fingers D of the fiat key D, Fig. 6, are adapted to extend. This plate is also provided with a struck-up lug or stop B to limit the movement of the locking-hook (J in one direction.

Owing to the simple construction of this look, it can be easily picked or opened with a nail or similar object engaged in the ends of the slot, and for the purpose of covering and concealing these ends a revolving escutcheon or mask E is provided, as shown in Figs. 2 and 5. This escutcheon is adapted to be struck up from sheet material, and the raised portion thereof is provided with two apertures E to receive the prongs D of the key, while the flange E is formed at its base to bear against the inner face of the material, where a circular opening for the escutcheon is formed. For the purpose of finishing the exterior of the opening a cor'jperatingmember t" is provided, having a flange to lie upon the outer face surrounding the opening. These members when combined comprise substantially an eyelet construction adapted to be inserted and secured in position by the use of machinery and obviating the use of any auxiliary securing devices.

In the operation of the invention it will be seen that the prongs or lingers carried by the key engage the opposite ends of the slot in the locking-hook and are adapted to oscillate said hook upon the pivoting-eyelet, by which it is supported in the case, while the escutcheon conceals and protects the lock mechanism and acts as a support to the key, while it also by the eyelet construction thereof provides a finished edge adjacent to the key-opening for the lock and obviates the necessity or use of auxiliary means for securing the parts in position. It will be seen that the several parts of both the lock and escutcheon are adapted to be formed by stamping from sheet material, thus obviating the expense and inaccuracy of handwork necessary in many constructions and providing parts which can be easily and quickly formed by machinery and also secured in position upon the box or object to which it applied without the use of nails, screws, or other auxiliary securing devices, as the lock-case itself carries at its opposite ends the securing means therefor. 1n the application of the lock the escutcheon is first placed in position and the loekplaced behind the same, thus preventing any upward movement of the apertured member of the escutcheon by reason of the pressure of the key in operating the lock.

Having described my invention and set forth its merits, what I claim, and desire to secure by Letters Patent, is

I. In a lock, a casing provided at one end with a slotted portion at an angle thereto having a depending securing-prong and at the opposite end with a securing-prong extended in the plane of the body of the casing.

2. In a lock, a casing having a pivotingaperture and provided at one end with a slotted portion and depending securing-prongs and at its opposite end with securing-prongs, a locking-hook pivotally mounted upon the inner face of said casing at said aperture, and an escutcheon disposed opposite the body of said locking-hook and provided with apertures for the introduction of the key therein.

3. In a lock, a casing provided at one end with a slotted portion and securing-proi'igs and at its opposite end with securing-prongs, a locking-hook pivotally mounted upon the inner face of said casing, an escutcheon disposed opposite the body of said locking-hook and provided with apertures for the introduction of the key therein, and a flanged finishing-plate adapted to extend around and engage the apertured. portion of said escutcheon.

at. In a lock, a casing provided at one end with a slotted portion bent at a right angle to the body thereof and prongs extending parallel to said body, prongs at the opposite end of said plate extending in the plane of the plate, a slotted locking hook extending through said slotted portion and in contact with the inner face of the casing, and an eyelet extending through the casing and the slot of said hook.

5. In a lock, a casing provided at one end with a slotted portion bent at a right angle to the body thereof and prongs extending parallel to said body, prongs at the opposite end of said plate extending in the plane of said plate, a slotted locking hook extending through said slotted portion in contact with the inner face of the casing, an eyelet extending through the casing and the slot of said hook, end flanges at the opposite sides of said plate bent at an angle thereto, and a stop-lug carried by the body of the plate at one side of the locking-hook.

6. In a lock, an escutcheon comprising a member having a raised portion apertured upon its face and a flange at the base of said portion, and a cooperating member having a flange at one end and adapted to surround theraised portion of the first-mentioned member.

7. A blank for a lock-casing having a pivotaperture and slotted portion,sharpened prongs extended from the opposite ends of the slot and at a right angle thereto, and parallel sharpened prongs extended from the opposite end of the casing.

In testimony whereof I atfix my signature in presence of two witnesses.

EDVVARI) L. KRAUS.

itnesses:

Rona. H. DALBY, ANNIE L. BERKEMEYER. 

